Physics-Lenses
NEET Physics Lenses MCQ Question
Type: MCQ-diagram based-Medium-Class 12
Consider a diagram showing light passing through a convex lens and then a concave lens placed in contact. Which of the following correctly describes the nature of the lens system formed by this combination?
A
Diverging lens system with negative effective focal length
B
Converging lens system with positive effective focal length
C
Converging lens system with negative effective focal length
D
Diverging lens system with positive effective focal length
Correct Answer
Option A
Detailed Explanation
The combined focal length of a convex lens (30cm) and a concave lens (20cm) can be calculated using the lens formula, resulting in a negative value, indicating a diverging lens system.
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